Almanzer gaines



(No Model.) 2 Sheets-Sheet 1.

. A. GAINES.

PBINTING PRESS.

No. 577,848. Patented Mar. 2, 1897.

(No Model.) 2 sham-sheet 2.

A. GrAINES.`

PRINTING PRESS.

No 577,848. Patented' Mar. 2 1897.

NITED STATES PATENT OFFICE..

ALMANZER GAINES, OF MENDON, MICHIGAN, ASSIGNOR OF THREE-FOURTHS TO OTTO W. SEEB AND CHARLES WV. SEEB, OF SAME PLACE.

PRINTING-PRESS.

SPECIFICATION forming part of Letters Patent No. 577,848, dated March 2, 1897. Application filed .Tuly 29, 1896. Serial No. 600,985; (No model.)

To aZZ whom (Zt may concern.-

Be it known that I, ALMANZER GAINES, a citizen of the United States, residing at Mendon, in the county of St. Joseph and State of Michigan, have-invented a new and useful Printing-Press, of which the following is a specification.

This invention relates to printing-presses, and has reference to that class in which a horizontal reciprocatingtype-bed is enployed in connection with a revolving impressioncylinder.

The object of the present invention is to provide means for causing the cylinder to operate with an intermittent motion, revolving as the type-bed moves forward and remaining stationary as the bed is retracted, thus economizing the power required to drive the machine.

The invention also has reference to the manner of mounting the device which contributes to the above end and to the means for moving the inking-rollers onto the inkplate as the type-bed reaches the limit of its backward movement.

Other objects and advantages of the invention will appear in the course of the ensuing description. u

The invention consists in certain novel features and details of Construction and arrangement of parts, as hereinafter fully described, illustrated in the drawings, and finally embodied in the claims hereto appended.

In the accompanying drawngs, Figure l is a side elevation of a cylinder-press constructed in accordance with the present invention. Fig. 2 is a plan view of the same. Fig. 3 is a longitudinal section thereof. Fig. 4: is a cross-section through the machine. Figs. 5 and 6 are detail cross-sections showing modifications in the manner of nounting the reciprocating type-bed.

Similar numerals of reference desi gnate correspondin g parts in the several figures of the drawings.

Referring to the accompanying drawings, 1 designates the press-frame, upon which is mounted a horizontal and longitudinally-reciprocating type-bed 2. Above the type-bed 2 is located the revolving impression-cylinder 3, extendin g transversely across the machine and nounted in fixed bearings 4, located intermediate the length of the press-frame. The tybe-bed 2 may be slidingly mounted on the press-frame in one of several ways. lt may either be provided on its under side with V- shaped longitudinal ribs 5, working in channel-guides 6, as shown in Fig. 4, or it may be provided upon its under side with carryingrollers 7, having V-shaped rims, as shown in Fig. 5, or grooved, as shown in Fig. 6, the said rollers Operating upon and in connection with correspondingly-forned rails or guides, thus insurin g the working of the type-bed in a perfectly-true line.

The type-bed is reciprocated by means of an oscillating toothed segment 8, which meshes with a longitudinal rack-bar 9 on the bottom of the type-bed. The segment 8 is fulcrumed on the shaft 10, mounted near the base of the machine-frame in suitable bearings, and is actuated through the medium of an interposed link 11 by a revolving spur-gear 12, which is in turn actuated by means of a spurpinion 13 on the driving-shaft 14 of the machine. The link or connecting-rod 11 is journaled on a wrist-pin on the spur-gear 12 at a suitable distance from the center, so that as said wheel revolves the link is caused to os-` cillate the segment 8, and the latter in turn to reciprocate the type-bed. The drivingshaft 14: may be actuated in any suitable manner.

The type-bed is provided at one side with a rack-plate 15, which meshes with a mutilated spur-gear 16 on the adjacent end of the cylinder 3. The teeth of the rack-plate and gear are so regulated and numbered that the forward movement of the type-bed will im-` part exactly one revolution to the cylinder and bring the gap in the gear-teeth or that part of the spur-wheel in which the teeth are omitted into the lowermost position, so that as the type-bed is retracted the teeth of the gear 16 will not be engaged by the teeth of the rack-plate 15,thus leaving the impressioncylinder stationary. In order to insur e the complete revolution of the cylinder in the forward movement of the type-bed, the latter is provided at its rear end with a hook or projection 17, which, as the type-bed reaches the forward limit of its throw, Contacts with a IOO pin 18 on the cylinder and moves the latter sufficiently to bring the gap in the teeth to the lowermost point, as' shown in Fig. 1.

19 designates alongitudinal rock-shaft having its ends reduced and journaled in suitable bearings 20, secured to one side of the frame 1. This rock-shaft is arranged at one end of the cylinder and is provided intermediate its ends with an arm 21, having an inwardly extendin g projection or stud 22,adapted to enter between the opposing faces or shoulders of a pair of segmental cam projections 23, located at one end of the cylinder and near the periphery thereof. These cam projectons have reversely-inclined working faces, so that the projection or stud 22 may ride thereon until it drops in between the opposing faces of said projections 23 and locks the cylinder against further rotation. A spring 24 surrounds the rock-shaft 19 and gives the arm 21 an inward pressure, so that the stud 22 will automatically drop in between the cam projections 23 and hold the cylind'er locked, as shown in Fig. 1. The locking of the cylinder occurs at the point where the type-bed reaches the limit of its forward movement.

In the return movement of the type-bed a laterally-projeeting cani 25 on the type-bed engages under the inwardly-projecting end 26 of a second arm 27 on the rock-shaft 19, thus serving to rock said shat't against the tension of the spring 24, moving the stud 22 out of engagement with the cylinder and leaving the latter free to revolve. is held locked in this latter position by means of a pivoted latch 28, fulcrumed on the machine-frame and having a lip 29, which engages a catch projection or lip 30 on the rockshaft, as clearly shown in Fig. 4. The typebed is provided at one end with a gravitypawl 31', which just previous to the type-bed reaching the limit of its return movement slips under the pin 18 on the cylinder, whereupon as the type-bed starts forward again the said pawl 31 engages behind the pin 18 and rotates the cylinder sufficiently to bring the teeth of the gear-wheel 16 into mesh with the rack-plate 15, thus causing the cylinder to make another revolution, the paper being fed forward from the feed board or table 32 at the same moment and passing between the cylinder and bed, where it is printed in a manner well understood. Just as the type-bed reaches the forward limit of its movement a hook or finger 33 at the rear end of the bed passes under and engages the inwardly-projecting end 34 of the latch 28,1itting said latch out of engagement with the rock-shaft 19 and allowing the spring 24: to throw the arm 21 inward for looking the cylinder.

The ink-roller carriage consists of parallel arms 35, journaled on pintles 35% projecting inward fron the frame and connected at top and bottom by suitable cross-bars 36. These arms 35 are slotted at their upper ends to receive the spindle of the inking-roller 37, and,

The rock-shaft the lower cross-bar 36 has connected toit one end of a rod 38, which extends back to an upright lever 39, fulcrumed at its lower end on the press-frame and having its upper end arran ged in the path of the type-bed. The typebed just previous to reaching the limit of its return movement strikes against the lever 39, thereby oscillating the arms 35 and causing the inking-roller 37 to be moved onto the inkplate 40 at the forward end of the type-bed, where said roller receives its supply of ink and afterward returns to its normal position when the type-bed starts forward by the action of a spring 41, having one end connected to the cross-bar 36 and the opposite end to the press-frame.

The advantages gained by mounting the ink-rollers in a reciprocating carriage are economy in both power and floor space. ere the rollers held in a stationary rack the bed of the press would be requiredto have sufficient throw to Carry the ink-plate under the rollers at each reciprocation, and in that case the cylinder would have to be larger and the bed-rack longer to perform the function. Thus by my Construction I can use a smaller cylinder and a shorter bed and rack, and by this arrangement I save the extra power which would be required to revolve a larger cylinder, and I save the floor-space which would be required for a longer press frame and rack.

From the foregoing description it will be seen that the inpression-cylinder has an intermitten't motion, revolvng as the type-bed moves forward and remaining stationary as the type-bed is retracted. The particular locking and unlocking meehanism described insures the accurate working of the cylinder and prevents it from moving from its correct position. This great-ly facilitates the work and economizes in the power required to drive the press.

It will be understood that the several parts of the press described are susceptible of changes in the form, proportion, and minor details of construction, which may accordingly be reso'rted to without departing from the spirit or sacrificin g any of the advantages of this invention.

Having thus described the invention, what is claimed as new is- 1. In a printing-press, the combi'nation with a reciprocatin g type-bed,of an intermittentlyrotated impression-cylinder having a s'pur gear-wheel at one end, and carrying a pairof cams on its face, and a rock-shaft journaled at right an-gles to the cylinder on the machineframe, said rock-shaft provided with an inwardly-eXtending stud or stop, and means for throwing the stud between the pair of came to hold the cylinderagainst rotation, substantially as described.

2. In a printing-press, the combination with a reciprocatin g type-bed,of an intermittentlyrotating impression-cylinder having a spur gear-wheel at one end thereof meshing with a rack on the type-bed, said gear-wheel be- IOO IOS

IIO

577,&48 I 3 ing mutilated and provided with a double cam on its face, a spring-actuated rock-shaft journaied on the frame and carrying a stop which is projected between the cams for holding the cylinder stationary during a portion of the throw of the type-bed, a cam 25 on the typebed, and an arm on the rock-shaft coperating with the said cam for withdrawing the stop, substantaliy as described.

3. In a printing-press, the combination with a reciprocating type-bed,of an intermittentlyrevolving impression-cylinder having a spnr gear-wheel at one end thereof in mesh with a rack on the type-bed, said gear-wheel being mutilated and provided with a double cam on its face adjacent to the mutilated portion of the gear-wheel, a rock-shaft journaled on the france, a stop on the rock-shaft, automatic means for throwing the stop between the cams and withdrawin g it therefrom, a pin 18 on the gear-wheel in line with the opening between the cams, and the typebed having a hook 17 at one end thereof to catch the pin, for the purpose described.

4:. In a printing-press, the combination of a reciprocating type-bed, carrying a rack, an intermittently-revolvin g imp'ression-cylinder having a mutilated spur gear-wheel at one end in mesh with the rack, a double cam on said wheel, a spring rock-shaft monnted on the iframe at the side of said wheel, and provided with a stop, automatic means for throwing the stop between the cams and for with drawing it therefrom, a pin on the gear-wheel in line with the opening between the cams,

and the type-bed carrying a hook 17 at one i a spring for actuating said rock-shaft, a latch for engaging said rock-shaft and holding said arm away from the cylinder, and a projecton or finger on the type-bed for lifting the latch out of engagement with the rock-sha-ft, sub stantially as described.

6. In a printing-press, a reciprocating typebed carrying an ink-plate, and an impressioncylinder, in combnation with an ink-roller carriage fulcrumed intermediate its ends, an inking-rolier carried thereby, an upright lever having one end arranged in the path of the type-bed so as to be actuated thereby, and a connecting-rod interposed between said lever and 'the ink-carriage, all arranged substantially as and for the purpose described.

In testimony that I claim the foregoing as my own I have hereto affixed my signature in the presence of two witnesses.

ALMANZER GAINES.

Witnesses:

EDWARD E. HARWOOD, ALFRED CRANDELL. 

